Portland Shellfish Company, Inc. is voluntarily recalling the following brands of cooked, ready to eat fresh or frozen lobster meat: Portland Shellfish Co. Inc brand, Claw island, Craig’s All Natural, and Inland Ocean cooked, fresh or frozen lobster claw and knuckle meat as recent tests show the product has the potential to be contaminated with Listeria monocytogenes, an organism which can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immune systems.